An improved three-dimensional two-temperature model for multi-pulse femtosecond laser ablation of aluminum

Journal Article · Sat Feb 14 00:00:00 EST 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4907990· OSTI ID:22413080

Zhang, Jinping; Chen, Yuping; Hu, Mengning; Chen, Xianfeng ^[1]

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1. State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China)

In this paper, an improved three-dimensional two-temperature model for multi-pulse femtosecond laser ablation of aluminum was proposed and proved in our experiment. Aiming to achieve hole-drilling with a high ratio of depth/entrance diameter in vacuum, this model can predict the depth and radius of the drilled holes precisely when employing different laser parameters. Additionally, for multi-pulse laser ablation, we found that the laser fluence and number of pulses are the dominant parameters and the multi-pulse ablation threshold is much lower than the single-pulse one, which will help to obtain high-quality holes.

• OSTI ID: 22413080
• Journal Information: Journal of Applied Physics, Vol. 117, Issue 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABLATION
ALUMINIUM
BOREHOLES
LASER DRILLING
LASER RADIATION
MATHEMATICAL MODELS
PULSED IRRADIATION
TEMPERATURE DEPENDENCE
THREE-DIMENSIONAL LATTICES